Rename a group in C#

I would like to give to the new created group a name

In VBA works this code perfectly

Sub Macro1()
' Recorded 24.04.2022
ActivePage.Shapes.All.CreateSelection
ActiveSelection.Group
ActiveSelection.ObjectData("Name").Value = "Remo"
End Sub


But when i try to tranlsate in c# it looks as this is not possible 


selectedShape.ObjectData("Name").Value = "Remo";

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